我的 webpack-dev-middleware 设置无法获取/错误

Anu*_*ena 5 express webpack webpack-dev-server webpack-dev-middleware

首先,我在这里找到了许多类似的主题,但即使参考了它们,我仍然无法让它工作。

所以,我的问题只是Cannot GET /localhost:3000在运行我的快速服务器(使用npm run serve)后访问时进入了 Chrome 。不是找不到bundle.js文件;它根本找不到index.html。

当我npm run serve在 package.json 文件中运行脚本时,我在服务器控制台上没有看到任何错误。Webpack 构建(从 Webpack-dev-middleware 调用)日志也没有显示错误。

如果我直接从终端运行 webpack-dev-server 并访问相同的 URL,它可以正常工作。(我已经覆盖了主机和端口,以配合我使用的Express服务器,通过者devServer中选择webpack.config.js。)

我究竟做错了什么?

文件夹结构

/client
    /main.js    
/dist
    /index.html
    /assets/
/server
    /server.js
/webpack.config.js
/package.json
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webpack.config.js

const path = require('path');

module.exports = {
  entry: './client/main.js',

  output: {
    path: path.resolve(__dirname, 'dist/assets'),
    filename: 'bundle.js',
    publicPath: '/assets/'
  },

  module: {
    rules: [
      {
        use: 'babel-loader',
        test: /\.jsx?$/,
        exclude: /node_modules/,
      },
      {
        use: ['style-loader', 'css-loader', 'sass-loader'],
        test: /\.scss$/
      }
    ]
  },

  devServer: {
    host: 'localhost',
    port: 3000,
    historyApiFallback: true,
    contentBase: path.resolve(__dirname, 'dist'),
  }
};
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/dist/index.html

<!DOCTYPE html>
<html>
  <head>
    <title>Webpack-Dev-Middleware Test</title>
  </head>
  <body>
    <div id="app-container">
    </div>
    <script src="/assets/bundle.js"></script>
  </body>
</html>
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/服务器/server.js

const express = require('express');
const path =  require('path');
const app = express();
const port = process.env.PORT || 3000;

if (process.env.NODE_ENV !==  'production') {

  var webpackDevMiddleware = require("webpack-dev-middleware");
  var webpack = require("webpack");
  var config = require('./../webpack.config');
  var compiler = webpack(config);
  app.use(webpackDevMiddleware(compiler, {
    publicPath : config.output.publicPath,
  }));

} else {

  app.use(express.static(path.resolve(__dirname + '/../dist/')));
  app.get('*', (req, res) => {
    res.sendFile(path.resolve(__dirname + '/../dist/index.html'));
  });

}

app.listen(port, () => console.log('Started on port:', port));
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Lee*_*eol 3

问题是你并没有真正index.html在 webpack 块中的任何地方提供服务。你应该使用插件,例如html-webpack-loader在内存上提供它,或者使用express的静态函数,我认为更理想的(更多webpack方式)解决方案是前一种。

下面是使用的示例html-webpack-loader

(as one of the plugins in webpack config.)

new HtmlWebpackPlugin({
  filename: 'index.html',
  template: './dist/index.html',
  title: 'Your website'
})
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